uraninite

• 一种主要由氧化铀组成的矿物，常含微量镭、钍、钋、铅和氦；块状变种称为沥青铀矿，是铀的主要矿石。

A mineral composed primarily of uranium oxide, often containing trace amounts of radium, thorium, polonium, lead, and helium; in its massive form it is known as pitchblende and serves as the chief ore of uranium.

1. Uranium ore mineralC2formalscientific

   A dense, radioactive mineral composed primarily of uranium dioxide, often containing trace amounts of radium, thorium, polonium, lead, and helium. In its massive, non-crystalline form, it is known as pitchblende and is the primary source of uranium.

   铀矿

   • Uraninite is the most important ore for extracting uranium.
   • The geologist identified the black, heavy sample as uraninite.
   • Pitchblende, a variety of uraninite, was used by Marie Curie in her experiments.

   同义词pitchblende